DRIL-QUIP INC

CUSIP: 262037104 Class: COM

Parallax Volatility Advisers, L.P.'s Holding History (CIK: 0001521001)

Note: Option positions (PUT/CALL) are excluded.

Q3 2018
Shares 397 Value ($000) $21 Avg Close — Range —
Q4 2017
Shares 5,754 Value ($000) $274 Avg Close — Range —
Q2 2015
Shares 40 Value ($000) $3 Avg Close — Range —
Q1 2015
Shares 302 Value ($000) $21 Avg Close — Range —
Q4 2014
Shares 921 Value ($000) $71 Avg Close — Range —
Q2 2014
Shares 924 Value ($000) $101 Avg Close — Range —
Q1 2014
Shares 1,762 Value ($000) $198 Avg Close — Range —
Q3 2013
Shares 970 Value ($000) $111 Avg Close — Range —
Q2 2013
Shares 258 Value ($000) $23 Avg Close — Range —